CN108083376B - Sewage treatment agent and preparation method thereof - Google Patents

Sewage treatment agent and preparation method thereof Download PDF

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Publication number
CN108083376B
CN108083376B CN201711419488.1A CN201711419488A CN108083376B CN 108083376 B CN108083376 B CN 108083376B CN 201711419488 A CN201711419488 A CN 201711419488A CN 108083376 B CN108083376 B CN 108083376B
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parts
treatment agent
sewage treatment
bentonite
modified vermiculite
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CN108083376A (en
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不公告发明人
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Guangzhou reed Environmental Protection Technology Co., Ltd
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Wuhu Wanjiang Intellectual Property Operation Center Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12—Naturally occurring clays or bleaching earth
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a sewage treatment agent and a preparation method thereof. The sewage treatment agent comprises the following raw materials in parts by weight: 30-50 parts of modified vermiculite, 20-40 parts of bentonite, 10-20 parts of polyaluminium chloride, 10-20 parts of polyferric sulfate, 8-16 parts of activated carbon, 2-6 parts of sodium dodecyl benzene sulfonate and 5-10 parts of potassium ferrate. The sewage treatment agent has the characteristics of high speed, good adsorption, flocculation and sedimentation effects, thorough treatment and no secondary pollution, and the treated water body can reach the discharge standard.

Description

Sewage treatment agent and preparation method thereof
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to a sewage treatment agent and a preparation method thereof.
Background
Sewage, generally refers to effluent water from life and production that is contaminated to some extent. The sewage mainly comprises domestic sewage, industrial wastewater and initial rainwater. The main pollutants of the sewage include pathogen pollutants, oxygen-consuming pollutants, plant nutrients, toxic pollutants and the like. Along with the continuous development of industrial modernization, more and more industrial wastewater is discharged, which brings great influence to the environment and human life, if the wastewater is not treated in time, the quality of air and drinking water is not only directly influenced, but also the physical and mental health of human is indirectly influenced.
There are many methods for treating sewage, including biological treatment methods and physical treatment methods. The biological method has long treatment time, low speed and low efficiency; the physical treatment method has high cost, incomplete treatment, easy secondary pollution and no discharge standard.
Disclosure of Invention
Aiming at the defects, the invention provides a sewage treatment agent and a preparation method thereof. The sewage treatment agent has the characteristics of high speed, good adsorption, flocculation and sedimentation effects, thorough treatment and no secondary pollution, and the treated water body can reach the discharge standard.
The technical scheme adopted by the invention is as follows:
a sewage treatment agent comprises the following raw materials in parts by weight: 30-50 parts of modified vermiculite, 20-40 parts of bentonite, 10-20 parts of polyaluminium chloride, 10-20 parts of polyferric sulfate, 8-16 parts of activated carbon, 2-6 parts of sodium dodecyl benzene sulfonate and 5-10 parts of potassium ferrate.
Further, the raw materials in parts by weight are preferably as follows: 33-42 parts of modified vermiculite, 24-32 parts of bentonite, 14-16 parts of polyaluminium chloride, 12-16 parts of polyferric sulfate, 10-13 parts of activated carbon, 3-4 parts of sodium dodecyl benzene sulfonate and 7-10 parts of potassium ferrate.
Further, the raw materials in parts by weight are preferably as follows: 37 parts of modified vermiculite, 26 parts of bentonite, 15 parts of polyaluminium chloride, 15 parts of polyferric sulfate, 9 parts of activated carbon, 4 parts of sodium dodecyl benzene sulfonate and 8 parts of potassium ferrate.
The modified vermiculite is acid modified vermiculite.
The preparation method of the acid modified vermiculite comprises the steps of sintering the vermiculite at 300-400 ℃ for 1-2 hours, adding acid liquor with the concentration of 0.5-1.5M, stirring for 30-60 min, centrifuging, washing filter residues until washing liquor is neutral, and drying to obtain the acid modified vermiculite. After being roasted and expanded at high temperature, vermiculite is treated by acid liquor, so that gaps among the layers of the vermiculite are enlarged, the acting force of the vermiculite on organic cations among the layers of the vermiculite is enhanced, and the adsorption effect is enhanced.
The invention also provides a preparation method of the sewage treatment agent, which comprises the following steps:
(1) roasting the bentonite at the high temperature of 420-480 ℃ for 2.5-3 h, naturally cooling and taking out;
(2) mixing the treated bentonite with other raw materials according to the formula amount, uniformly stirring, and crushing to obtain particles with the particle size of 80-120 meshes; and obtaining the sewage treatment agent.
According to the sewage treatment agent prepared by the method, the COD removal rate in the treated sewage is more than 98%, the TP removal rate is more than 98%, the TN removal rate is more than 96%, and NH is more than 96%3the-N removal rate is more than 95%.
Detailed Description
Example 1
The sewage treatment agent is characterized by comprising the following raw materials in parts by weight: 37 parts of modified vermiculite, 26 parts of bentonite, 15 parts of polyaluminium chloride, 15 parts of polyferric sulfate, 9 parts of activated carbon, 4 parts of sodium dodecyl benzene sulfonate and 8 parts of potassium ferrate.
The modified vermiculite is acid modified vermiculite, and the preparation method comprises sintering vermiculite at 300 deg.C for 2h, adding 0.5M acid solution, stirring for 60min, centrifuging, washing filter residue with water until the washing solution is neutral, and drying.
The preparation method of the sewage treatment agent comprises the following steps:
(1) roasting the bentonite at the high temperature of 420 ℃ for 3h, naturally cooling and taking out;
(2) mixing the treated bentonite with other raw materials according to the formula amount, uniformly stirring, and crushing to obtain particles with the particle size of 80-120 meshes; and obtaining the sewage treatment agent.
2g of the sewage treatment agent is added into 1L of sewage to be treated, wherein TP in the sewage is 1.28mg/L, COD is 56.44mg/L, TN is 9.75mg/L, and NH is added3Carrying out coagulation experiment with-N of 28.14mg/L, stirring the mixed solution for 4h at 300r/min by a coagulation device, standing the mixed solution, taking supernatant of the mixed solution, wherein the TP removal rate is 98.2 percent, the COD removal rate is 98.4 percent, the TN removal rate is 97.1 percent, and NH is added3the-N removal rate was 95.6%.
Example 2
The sewage treatment agent is characterized by comprising the following raw materials in parts by weight: 30 parts of modified vermiculite, 20 parts of bentonite, 10 parts of polyaluminium chloride, 10 parts of polyferric sulfate, 8 parts of activated carbon, 2 parts of sodium dodecyl benzene sulfonate and 5 parts of potassium ferrate.
The modified vermiculite is acid modified vermiculite, and the preparation method comprises sintering vermiculite at 400 deg.C for 1h, adding 1.0M acid solution, stirring for 45min, centrifuging, washing filter residue with water until the washing solution is neutral, and drying.
The preparation method of the sewage treatment agent comprises the following steps:
(1) roasting the bentonite at the high temperature of 450 ℃ for 3h, naturally cooling and taking out;
(2) mixing the treated bentonite with other raw materials according to the formula amount, uniformly stirring, and crushing to obtain particles with the particle size of 80-120 meshes; and obtaining the sewage treatment agent.
2g of the sewage treatment agent is added into 1L of sewage to be treated, wherein TP in the sewage is 1.28mg/L, COD is 56.44mg/L, TN is 9.75mg/L, and NH is added3Carrying out coagulation experiment with-N of 28.14mg/L, stirring the mixed solution for 4 hours at 300r/min by a coagulation device, standing the mixed solution, taking supernatant of the mixed solution, wherein the TP removal rate is 98.5 percent, the COD removal rate is 98.3 percent, the TN removal rate is 96.4 percent, and NH is added3the-N removal rate was 95.5%.
Example 3
The sewage treatment agent is characterized by comprising the following raw materials in parts by weight: 50 parts of modified vermiculite, 40 parts of bentonite, 20 parts of polyaluminium chloride, 20 parts of polyferric sulfate, 16 parts of activated carbon, 6 parts of sodium dodecyl benzene sulfonate and 10 parts of potassium ferrate.
The modified vermiculite is acid modified vermiculite, and the preparation method comprises sintering vermiculite at 400 deg.C for 1h, adding 1.5M acid solution, stirring for 30min, centrifuging, washing filter residue with water until the washing solution is neutral, and drying.
The preparation method of the sewage treatment agent comprises the following steps:
(1) roasting the bentonite at 480 ℃ for 2.5h, naturally cooling and taking out;
(2) mixing the treated bentonite with other raw materials according to the formula amount, uniformly stirring, and crushing to obtain particles with the particle size of 80-120 meshes; and obtaining the sewage treatment agent.
2g of the sewage treatment agent is added into 1L of sewage to be treated, wherein TP in the sewage is 1.28mg/L, COD is 56.44mg/L, TN is 9.75mg/L, and NH is added3Carrying out coagulation experiment with-N of 28.14mg/L, stirring the mixed solution for 4 hours at 300r/min by a coagulation device, standing the mixed solution, taking supernatant of the mixed solution, wherein the TP removal rate is 98.7 percent, the COD removal rate is 98.4 percent, the TN removal rate is 96.5 percent, and NH is added3the-N removal rate was 95.7%.
The above detailed description of a sewage treatment agent and a method for preparing the same with reference to the examples is illustrative and not restrictive, and several examples may be cited within the scope of the present invention, so that variations and modifications thereof may be made without departing from the general inventive concept and, therefore, the present invention is to be considered within the scope of the present invention.

Claims (3)

1. The sewage treatment agent is characterized by comprising the following raw materials in parts by weight: 30-50 parts of modified vermiculite, 20-40 parts of bentonite, 10-20 parts of polyaluminium chloride, 10-20 parts of polyferric sulfate, 8-16 parts of activated carbon, 2-6 parts of sodium dodecyl benzene sulfonate and 5-10 parts of potassium ferrate;
the modified vermiculite is acid modified vermiculite;
sintering the vermiculite at 300-400 ℃ for 1-2 h, adding 0.5-1.5M acid liquor, stirring for 30-60 min, centrifuging, washing filter residues with water until the washing liquor is neutral, and drying to obtain the acid modified vermiculite;
the preparation method of the sewage treatment agent comprises the following steps:
(1) roasting the bentonite at the high temperature of 420-480 ℃ for 2.5-3 h, naturally cooling and taking out;
(2) mixing the treated bentonite with other raw materials according to the formula amount, uniformly stirring, and crushing to obtain particles with the particle size of 80-120 meshes; and obtaining the sewage treatment agent.
2. The sewage treatment agent according to claim 1, comprising the following raw materials in parts by weight: 33-42 parts of modified vermiculite, 24-32 parts of bentonite, 14-16 parts of polyaluminium chloride, 12-16 parts of polyferric sulfate, 10-13 parts of activated carbon, 3-4 parts of sodium dodecyl benzene sulfonate and 7-10 parts of potassium ferrate.
3. The sewage treatment agent according to claim 1 or 2, comprising the following raw materials in parts by weight: 37 parts of modified vermiculite, 26 parts of bentonite, 15 parts of polyaluminium chloride, 15 parts of polyferric sulfate, 9 parts of activated carbon, 4 parts of sodium dodecyl benzene sulfonate and 8 parts of potassium ferrate.
CN201711419488.1A 2017-12-25 2017-12-25 Sewage treatment agent and preparation method thereof Active CN108083376B (en)

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109052507A (en) * 2018-08-21 2018-12-21 重庆渝茁科技有限公司 Sewage-treating agent and preparation method thereof
CN109052506A (en) * 2018-08-21 2018-12-21 重庆渝茁科技有限公司 Multi-functional Environment-friendlysewage sewage treatment agent and preparation method thereof
CN110526382A (en) * 2019-08-16 2019-12-03 上海电力大学 Water treatment agent and preparation thereof
CN110436554A (en) * 2019-08-23 2019-11-12 河南亿群环保科技有限公司 A kind of environment protection sewage inorganic agent and preparation method thereof
CN110655129A (en) * 2019-10-16 2020-01-07 四川一色三源环保工程有限公司 Preparation method of efficient water purifying agent for domestic sewage treatment
CN111875022A (en) * 2020-08-28 2020-11-03 南京融众环境工程研究院有限公司 Precipitator for treating chemical wastewater and preparation method thereof
CN113461085A (en) * 2021-08-10 2021-10-01 北京城建智投建设集团有限公司 Environment-friendly material for sewage treatment and environment improvement
CN117509859B (en) * 2024-01-05 2024-09-10 北京东雷恒业环保科技有限公司 Reinforced magnetic precipitation pretreatment method for steel wastewater treatment agent and steel wastewater

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Publication number Priority date Publication date Assignee Title
CN104495960A (en) * 2014-11-03 2015-04-08 芜湖市祥荣食品有限公司 Sodium bentonite processing agent for blue-green algae and preparation method thereof
CN105967261A (en) * 2016-05-26 2016-09-28 许婷 Sewage treatment agent special for printing and dyeing wastewater and preparation method of sewage treatment agent
CN106396039A (en) * 2015-07-28 2017-02-15 江苏吉华化工有限公司 Ammonia nitrogen removing fine chemical industry wastewater treatment agent
CN106957070A (en) * 2017-03-20 2017-07-18 浙江清环保工程有限公司 A kind of rapidly and efficiently ammonia nitrogen removal agent and its preparation method and application
CN107243331A (en) * 2017-08-14 2017-10-13 重庆工程职业技术学院 Environment-friendly type water purification bag for water process and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104495960A (en) * 2014-11-03 2015-04-08 芜湖市祥荣食品有限公司 Sodium bentonite processing agent for blue-green algae and preparation method thereof
CN106396039A (en) * 2015-07-28 2017-02-15 江苏吉华化工有限公司 Ammonia nitrogen removing fine chemical industry wastewater treatment agent
CN105967261A (en) * 2016-05-26 2016-09-28 许婷 Sewage treatment agent special for printing and dyeing wastewater and preparation method of sewage treatment agent
CN106957070A (en) * 2017-03-20 2017-07-18 浙江清环保工程有限公司 A kind of rapidly and efficiently ammonia nitrogen removal agent and its preparation method and application
CN107243331A (en) * 2017-08-14 2017-10-13 重庆工程职业技术学院 Environment-friendly type water purification bag for water process and preparation method thereof

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Effective date of registration: 20210202

Address after: Room 2436, 206 Fenghuang beiheng Road, Yongning Street, Zengcheng District, Guangzhou, Guangdong 510000

Patentee after: Guangzhou reed Environmental Protection Technology Co., Ltd

Address before: 241000 rooms A206 and 207, complex building, 38 Yinhu North Road, Wuhu Economic and Technological Development Zone, Anhui Province

Patentee before: WUHU WANJIANG INTELLECTUAL PROPERTY OPERATION CENTER Co.,Ltd.